Thomas married Martha Ann Fuqua, daughter of John Thomas Fuqua and Margaret Call, on 16 Nov 1854 in Greencastle, Putnam County, Indiana. (Martha Ann Fuqua was born on 18 Apr 1842 in Greencastle, Putnam County, Indiana, died on 25 Dec 1916 in Oklahoma City, Oklahoma County, Oklahoma and was buried in Sunny Lane Cemetery, Oklahoma City, Oklahoma.)